Lighting device



F.' Ml ROSENFELD.

LIGHTING DEVICE.

APPLICATION man 1AN.31, 1920.

Pamnasept. 13,1921,

UNITED? "STS retenir-f,effiGr.51:

FRANCIS M; nosnNFELD, onNEW YORK, N. vQAssIGNon, fnv .rirEsNnAssIdNii/iriivgrs,

ATo :DIAMOND nnncrnrcsrricrnrkrns oo'nlrortnrron, orhNiuwAni, NEWfJn'R'sEY, l

5 A. CORPORATION or' NEW JERSEY. M V- i j LIGHTING' .nEvIC-nf ing a lamp support `'which mayrnotvonly be readily attached to and detached from. a Christmas tree or other similar object to be illuminated, but which may also be easily attached to and detachedl from the lamp holder. Avfurther object lof the invention is to provide a support which, while readily attachable to and detachable from the holder, will normally engage said holder securely in holder supporting relation. It is also contemplated that devices embodying the present invention may permit the lamp holder to be readily adjusted to Vdifferent positions and attached and detached without permanently distorting or injuring the 'suport. p An embodiment of my invention is illustrated in the drawings which form a' part of the present specification and in which,

Figure l is an elevation,

Fig. 2, a plan View,

Fig. 3, an elevation with a lamp and the support assembled and mounted,

Fig. 4, a modification partly in vertical section showing the holder engaging portion of the support offset from the gripping coil,

Figs. 5, 6 and 7 modifications partly in vertical section showing interlocking means between the holder andy thev support, and

Fig. 8, is a bottom view partly in cross section on the line 8 8 of Fig. 6.

Referring to the drawings, a device embodying my invention may comprise means forsupporting a hollow candle shaped lamp holder l which is commonly provided with a metallic lamp receiver to which conductors 2 may be secured to provide current for an electric lamp 3 of any suitable form. For

the purpose of retaining holder 1 in allillpvApplication .filed January :an-1320.3 serial-alim;355,404.5V

' `right or inlanyother-desired position,:me'ans are provided to interiorly engage said Vholder @arrasar ,l n

andmay comprise a single strip efr-.wire having; .opp osed holder engaging portions .4. and

5 'Continuous-with and carriedlbyanattach'-y ingv portions 6 1- preferably' inv the -form of: a coll arranged toiyieldinglyk gripr.a gbranch efa .Christmas tree; indicated in 'Fig.f3, or

other object to beilluminated. 1

AAs indicated more. clearlyin Figsr toA l inelusive,.fmeansmay be provided for effect.-

ing ysecure engagement. :between the holder 1 and its support. Fig.-5sh'owsa holder .1;

-providedzwithfan interiorlygarranged annular grfo0ve8 constituting ineffectianenlargef ment loffthe opening .of theffhOlderl which maylof coursegbe ofany'. desiredscross sectional shape. In the form of device shown in Fig. 6 an annular projection 9 constricts the-openinoF of thel holder l, as does also the interior y extending flange 10, Figs. 6

and 7 Where the interior opening of the holder varies in extent so as to form relatively constricted portions adjacent to en-v larged portions, the opposed holder engag-k ing portions 4 and 5 of the wire support may be bent to conform to the interior' surfaces of the holder. Thus, where the normal distance between portions 5 and 6 is sufficiently greater than the extent of the interior opening of the holder, said portions will press yieldingly against the interior surface when in. engagement therewith. And, if the membersy 4 andk5, or either of them, are provided lwith deformations corresponding to the deformations on'the interior surface, the holder will be the more securely retained in effective engagement with the support. Where it is desired to lock the holder positively against rotation relatively to the support, a notch 11 may be provided, as shown in Figs. 6 and 8.- This construction also affords a positive lock against endwise movement ofthe holder 1 relatively to the support because the flange 10 engages the free end of the portion 5 preventing removal of the holder from the support, and the annular projection 9 serves to limit the extent of movement of the'support into the holder..

It is believedthatthe mode of operation`r eoy y curit taken with the description. Also, it will be clearl that a lighting device comprising an electric lamp holder of hollovs7 or recessed construction, and a support for t-he holder consisting of a wire having a portion adapted to engage the interior of the holder and a portion in the Vform of a gripping coil presents various advantages both in use and in manufacture. Since safety in use is an important consideration the additional sefeatures of applicants improved lighting device will enhance its utility with` out materially increasing the cost of production. f

I claim as my invention:

l. A lighting device comprising a hollow lamp holder having a portion of its interior opening constricted relatively tothe normal opening and a support for said holder consisting of a single length of wire having one portion bent to engage surfaces oi' said constricted portions to retain said holder and said support in effective relation and another portion'arranged in convolutions to form a gripping-coil.`

2. A lighting device comprising the electric lamp holder l, and a separate holder supporting member detachable therefrom and consisting kof a single lengthV of wire including the gripping coil 6 and the opposed holder engaging portions 4; and 5.

3. A Christmas tree lighting device comprising a hollow lamp holder simulating a candle stick and a support adapted to retain the lamp holder in upright position on a Christmas tree and having one end arranged in convolutions to form a gripping coil and the other endbent back upon itself to form a hook shaped member adapt/'ed to project through an open end of the holder and to support the same securely and in a position with its longitudinal axis substantially parallel with the aXis of the coil.

4i. A Christmas tree lighting device comprising` in combination a hollow lamphold'er and a support adapted to retain the lamp holder in upri'ght'position on a Christmas tree and having one end arranged in convolutions to form a gripping member and the other end bent back upon itself to form a hook shaped member adapted to project through an open end of the holder and to support the same in operative position ona Christmas'tree. f 1

ln testimony whereol have signed my name to this speciiication this `28th dayolz January, 1920.. y f

FRANCIS M. ROSEl \ll `lflLl).v 4 

